+86 15806631151 [email protected]
TFL BEARINGS
REQUEST A QUOTE
21307 K Double Row Spherical Roller Bearing

21307 K Double Row Spherical Roller Bearing

The 21307 K is a double-row spherical roller bearing with a 35mm bore and 80mm outer diameter, crafted from sturdy chrome steel. It handles combined loads up to 17805 lbf and spins smoothly at speeds up to 9500 RPM.

Its spherical roller design allows for slight misalignment, while the steel cage ensures durability. The open construction makes lubrication straightforward, and it operates well in temperatures from -30°C to 200°C.

This model is interchangeable with SKF bearings, offering a reliable replacement option. Ideal for heavy-duty applications like industrial gearboxes or mining equipment where robust performance is needed.

Weighing 0.54kg, it balances strength and manageability. Compliant with RoHS and REACH standards for safe and eco-friendly use.

Get A Free Quote
    Description Features Application Q&A Featured Products Our Process

Product Parameters

  • Part Number 21307 K
  • Brand TFL
  • Interchangeable SKF
  • Size 35 x 80 x 21 mm
  • Bore Dia 35 mm
  • Bore Dia Tolerance +0.025mm to 0
  • Outer Dia 80 mm
  • Outer Dia Tolerance -0.013mm to 0
  • Width 21 mm
  • Width Tolerance -0.06mm to 0
  • Shoulder Dia Of Inner Ring 47.2 mm
  • Shoulder/Recess Dia Of Outer Ring 65.6 mm
  • Chamfer Dimension min.1.5 mm
  • System of Measurement Metric
  • Radial run-out Standard
  • Bearing Type Roller
  • Roller Bearing Type Spherical
  • Bore Type Taper 1:12
  • For Load Direction Combined
  • Construction Double Row
  • Seal Type Open
  • Ring Material Chrome Steel
  • Roller Material Chrome Steel
  • Cage Material Steel
  • Dynamic Radial Load 17805 lbf
  • Static Radial Load 16186 lbf
  • Max Speed 9500 rpm
  • Lubrication Required
  • Temperature Range -30° to 200 °C
  • Radial Clearance CN
  • RoHs Compliant
  • REACH Compliant
  • Weight 0.54 kg
  • Price （US$） 23.58

Features

Performance Features of 21307 K Bearing

21307 K Bearing is built with chrome steel rings and rollers, offering robust resistance to combined loads.
Its dynamic radial load capacity reaches 17805 lbf, ensuring reliable performance in demanding conditions.

The double-row spherical roller design allows for slight misalignment, reducing stress on the bearing.
This feature enhances durability and extends the service life of 21307 K Bearing.

With a maximum speed of 9500 rpm, it balances high performance and efficiency.
The open design simplifies lubrication, ensuring smooth operation even at high speeds.

21307 K Bearing operates in temperatures from -30° to 200°C, making it versatile for various environments.
Its tapered bore design ensures secure fitting, reducing the risk of slippage.

Application

Industrial Uses of 21307 K Bearing
21307 K Bearing is commonly used in heavy machinery like conveyor systems and crushers, where its double-row spherical design handles misalignment and heavy radial loads. The chrome steel construction ensures durability in demanding industrial environments.

Where Is 21307 K Bearing Used?
You’ll often find 21307 K Bearing in mining equipment, where its ability to handle combined loads and high speeds keeps operations running smoothly. The open design allows for easy lubrication, extending its service life.

Built for Heavy-Duty Use: 21307 K Bearing
21307 K Bearing excels in construction equipment like cranes and excavators, thanks to its robust steel cage and tapered bore for secure fitting. Its temperature range makes it suitable for both hot and cold working conditions.

Automotive vs Aerospace: Applications of 21307 K Bearing
In automotive applications, 21307 K Bearing supports gearboxes and drivetrains, while in aerospace, it’s used in auxiliary systems requiring high-speed performance. The metric sizing ensures compatibility across various industries.

Q&A

SEND INQUIRY